In Comsol, I want to calculate the Txx(transmittance to x polarized for incident x polarized), Txy(transmittance to x polarized for incident y polarized), Rxx, Rxy, and so on in comsol. S21/S11 never gives info about the particular polarization, it gives the overall transmittance and reflectance. But how to find these components in Comsol?